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Concept Of Understeer And Oversteer Explained

ECARDLR demystifies the Understeer and Oversteer jargons in a simple and straightforward way though this tech-talk article.


Concept Of Understeer And Oversteer Explained


Concept Of Understeer And Oversteer Explained
Steering sensitivity of a vehicle with respect to its driving dynamics constitutes one of the important aspects of safety studies across the globe. Over the years, modern and sophisticated technologies have resulted in improved driving dynamics though no manufacturer is able to rein in the issues of steering sensitivity completely. One of the most dangerous outcomes of steering insensitivity or oversensitivity is called understeer and oversteer respectively. When a car understeer its front wheels slips out of control and same happens to rear wheels in case of oversteer. Both these situations are dangerous and could prove fatal in their consequences if feigned ignorance over. Usually these misbehaviors occurs on slippery or wet surface however these could take place in normal driving situation too in case of extreme pushing and cornering maneuvers.  
                   
                                                          Steering Rods: Responsible for turning aspect 
 
Understeer and oversteer is commonly used jargons and most of automotive blogs, magazines and enthusiastic discussions are littered with these terms. Understeer is phenomenon when a vehicle refuses to steer despite of steering input fed by driver. This means vehicle continues to plough in a straight line even so turning command by steering wheel. The overall effect of understeer is that vehicle steers less than the actual amount desired by the driver. As a result on a sharp turn the car leaves the road and goes in a straight line when it actually has to negotiate a turn as intended by driver. As shown below the desired path is marked by green dotted line while understeer effect results in vehicle leaving the road depicted through red stroke. Understeer is common phenomenon in front-wheel drive cars as power is transmitted to front wheels of the vehicle.
                 
                                        
 
                
                                                Understeer phenomenon: Front Tires losing steering grip
 
On the contrary to understeer, oversteer depicts the situation when steering input is translated in greater magnitude than its actual intention. Witnessed frequently in real-wheel drive vehicles, oversteer represents the tendency of rear to slide out of the line that is also also called fishtail. Usually the situation of oversteer arises only when a vehicle is slugging it out in intense rain, mud or snowy conditions. 
 
          
                                         
                                      Oversteer phenomenon: Rear Tires losing steering grip resulting in fishtail
 
Both understeer and oversteer could prove fatal in case of blatant ignorance about the rear dynamic capabilities of vehicle. Nowadays there are some new age technologies electronic like traction control and stability controls etc.helping vehicle to overcome these issues though economical vehicles devoid of these costly affairs still relies upon wisdom of driver for safe get around.

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